Indeed, talking to a colleague about his recent behavior that seems like he is addicted to gambling could be offensive, but helping out in a polite way won't sound so horrible to the victim. It takes a gambling conversation to convert a gambler to play responsibly and the person can then become friends with his colleague. What matters is saving the player from being convulsive; it could ruin his career because he won't provide the best services anymore. Secondly, I know a friend that was saved from gambling through his girlfriend. It works if the addicted player is married or in a relationship instead of meeting them to complain about their gambling habit, their spouse can handle vividly the task of advising, and counseling the victim to change their habit. The victim needs to hear it from someone they trust. It's more effective this way than causing more misunderstanding.